Operation Advancing Lion

Operation Advancing Lion (12 September 2008) was a military operation of the Iraq War carried out by the US Marine Corps against Iraqi insurgents in Iraqi Kurdistan. Some insurgents took over Sinjar in northern Iraq and held off the Americans for a while before being defeated and forced out of Sinjar.

History
The jihadist Islamic State of Iraq and nationalist JRTN teamed up to occupy Sinjar in Iraqi Kurdistan to fight against the pro-United States Peshmerga Kurdish forces. In response, the US Marine Corps was dispatched to clear the hill of all Iraqi insurgents, and they advanced up a road to fight the Iraqi insurgents atop the hill. The insurgents set up firing positions on the side of the hill, with one insurgent firing on advancing marines through a window with his AK-74u and inflicting heavy losses on them. However, the Americans eventually made it up the hill and overran insurgent positions, and the insurgents were forced to their underground base. The Americans attacked from two sides, and the insurgents were eventually defeated. The insurgents' defeat allowed for the Americans to force the insurgents out of their allies' territory, and Kurdistan was free from ISI occupation.